Colwill lasted the entire game as the Three Lions claimed a 1-0 win over Australia in an international friendly at Wembley on Friday.
Aston Villa striker Ollie Watkins scored the only goal of the game in the second half.
Primarily a centre back, Colwill was utilised by England manager Gareth Southgate in a left back position but has no qualms over where he plays at this stage of his international career.
“It was amazing,” he told beIN Sports.
“(A win and a clean sheet is) the best way to have a debut and hopefully we can build off the performance against Italy as a team and individuals and go from there.”
“Obviously, it is a different role,” the Chelsea defender added.
“But I have been playing there for my club and I am enjoying it and if it gives me a chance to start and to play, I’m all for it.”
“We have had a few days, we met on Monday so we have been training hard.”
“Getting to know players is obviously tough as that isn’t a lot of time but I think we put in a performance we can be proud of and we have just got to build from there.”
Colwill will look to get involved again when England host Italy in a EURO 2024 qualifier on Tuesday.
